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Quote by Barack Obama

“I stand here today as hopeful as ever that the United States of America will endure, that it will prevail, that the dream of our founders will live on in our time.”

Author

Barack Obama

Barack Obama, born on August 4, 1961, served as the 44th President of the United States from 2009 to 2017. He is the first African American to hold the office. Obama's presidency was marked by significant achievements, including the Affordable Care Act and the normalization of relations with Cuba. He was awarded the Nobel Peace Prize in 2009. more

“There is no agreement on the extent to which metabolism could develop independently of a genetic material. In my opinion, there is no basis in known chemistry for the belief that long sequences of reactions can organize spontaneously -- and every reason to believe that they cannot. The problem of achieving sufficient specificity, whether in aqueous solution or on the surface of a mineral, is so severe that the chance of closing a cycle of reactions as complex as the reverse citric acid cycle, for example, is negligible.”